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#!/usr/bin/env bash
#
# @file test/security/k8s/tools/dublin/get_helm.sh
# @author Pawel Wieczorek <p.wieczorek2@samsung.com>
# @brief Utility for obtaining helm tool
#
# Dependencies:
# wget
# tar
# coreutils
#
# Privileges:
# Script expects to be run with administrative privileges for accessing /usr/local/bin
#
# Usage:
# # ./get_helm.sh [VERSION [ARCH [SYSTEM]]]
#
# Constants
BINARY='helm'
INSTALL_DIR='/usr/local/bin/'
DEFAULT_VERSION='v2.16.6'
DEFAULT_ARCH='amd64'
DEFAULT_SYSTEM='linux'
# Variables
VERSION="${1:-$DEFAULT_VERSION}"
ARCH="${2:-$DEFAULT_ARCH}"
SYSTEM="${3:-$DEFAULT_SYSTEM}"
URL="https://storage.googleapis.com/kubernetes-helm/${BINARY}-${VERSION}-${SYSTEM}-${ARCH}.tar.gz"
ARCHIVE="${URL##*/}"
DIR="${SYSTEM}-${ARCH}"
# Prerequistes
wget "$URL"
tar xf "$ARCHIVE"
# Installation
mv "${DIR}/${BINARY}" "$INSTALL_DIR"
# Cleanup
rm "$ARCHIVE"
rm -r "$DIR"
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